2 or 3 cvr 12 ported box desing help

willing to pay or whatever it takes to get some good plans dont know what size 3/4 or 1" ill leave that up to the experts I want this to hit deep, keep in mind I know the cvr is not a top notch sub, but will be upgradeing in the future. amp im useing -- RF-T1500-1bd I might just use 2 subs so I need input on both set ups.

Also willing to trade my box for a dual 12" ported box localy if its the **** i might throw in the 3rd sub, my box cost me a few hundy or hell I can even do my subs and box for your subs and a ported box local though.

vehicle --000 Ford Expedition
3rd row is taken out
Cargo--D-36" W-48" H--19" Like to keep level with rear seats

My Box to trade W-48 D-13.5 H-14

If someone can come up with somethin shoot me a msg again thnx in advance ))